998698480

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{30977}}^1$

素因数の和:31034

約数の個数: 80

約数和(自身を含む): 2581334784

約数和(自身を除く): 1582636304

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 3224, 4030, 6448, 8060, 16120, 30977, 32240, 61954, 123908, 154885, 247816, 309770, 402701, 495632, 619540, 805402, 960287, 1239080, 1610804, 1920574, 2013505, 2478160, 3221608, 3841148, 4027010, 4801435, 6443216, 7682296, 8054020, 9602870, 12483731, 15364592, 16108040, 19205740, 24967462, 32216080, 38411480, 49934924, 62418655, 76822960, 99869848, 124837310, 199739696, 249674620, 499349240, 998698480]

約数ペア:

[(1, 998698480), (2, 499349240), (4, 249674620), (5, 199739696), (8, 124837310), (10, 99869848), (13, 76822960), (16, 62418655), (20, 49934924), (26, 38411480), (31, 32216080), (40, 24967462), (52, 19205740), (62, 16108040), (65, 15364592), (80, 12483731), (104, 9602870), (124, 8054020), (130, 7682296), (155, 6443216), (208, 4801435), (248, 4027010), (260, 3841148), (310, 3221608), (403, 2478160), (496, 2013505), (520, 1920574), (620, 1610804), (806, 1239080), (1040, 960287), (1240, 805402), (1612, 619540), (2015, 495632), (2480, 402701), (3224, 309770), (4030, 247816), (6448, 154885), (8060, 123908), (16120, 61954), (30977, 32240)]